Not sure if you are going to wire up the fuel level sensor from the GM or not, but I was just reading on mud that it helps control the GM evap system. I never wired it up and my truck does OK, but I do get some pressure variations in the tank sometimes. Maybe this would help. You may want to do some research..

I am planning to pull a signal for the fuel level input right from the wire that sends voltage to the fuel level gauge. I may have to have the programming tweaked a little to work with the range the toyota sensor puts out.

I also plan on doing the fuel tank pressure as well. I am going to put the sensor in the evap line going between the tank and the canister. I bought all of the parts that would be needed for a 2005 silverado to match the donor engine.

I had a buddy come over today and help me set the hood back in place. I was right on with the positioning of the motor and with the hood closed, the insulation barely touches the highest point on the motor which is the evap purge valve on the intake. I need to rearrange the PS return line a little so that I can schooch the motor over towards the driver's side a bit to get it parallel to the frame rails.

Got the motor mounted and everything welded in. What a pain that was...

As you can see, the front drive shaft is hitting the trans pan, and this is just sitting static. I don't have the winch bumper mounted up so it's only going to get worse. Primary solution is to clearance the pan.

My pretty LS3 exhaust manifolds are not going to work. They are too wide for the frame. I will get a set of center dump block huggers instead because they are known to work.

All in all, I am glad it's in place. Now I can move on to the bolt on stuff.